Lineweights Not Plotting

Hello, I have a drawing that won't print with the different lineweights from my plot style table. I've been using the same plot style table that I always use. I keep comparing the plot window, plot style table and the page set-up manager window with another drawing that is printing correctly but nothing seems to be clicked incorrectly. I have the "plot with plot styles" checked in both the plot and page set-up windows. I'm sure I am missing something stupid! Does anyone have a suggestion?

If you open it in FORM view, take a screenshot (press 'Alt+Prt Scr' then paste into word), and attach this screenshot to your next post we can take a look at it for you and spot if there are any problems there.

Im intelligent enough to know that I dont know everything; but I'll tell you all about it anyway.

Check Objects

Had the same problem and it was a simple solution for me.
Check two things:
1: in modelspace with no objects selected, look at your properties window (attached or detached) and you will see the default lineweight. It should be "bylayer". If not, set it to this or everything you create beyond that point won't adopt the lineweight of it's layer (provided you are controlling lineweights by layer).

2: Highlight the objects that are not plotting their proper lineweights. Look at your properties window again, if anything besides "bylayer" shows up in the lineweight box, you won't get the proper lineweights. Choose the "bylayer option for all the objects you want to plot with lineweights from your layer settings.

Worked for me. you may want to change this setting in any custom Templates you have created as well, but that is a different story, for a different thread.